Makita Makstar BVR340 Technical Information page 4

R
epair
[3] -3. Flex-shaft Section
DISASSEMBLING
1) Remove Flex-shaft section from Motor section as described in [3] -1 on page 2.
2) Fix adjustable wrench in vise. Fix Flex-shaft section with adjustable wrench by fitting the flat surfaces of Flexible hose
in adjustable wrench. Separate Pipe 25 from Flexible hose by turning in the direction of the arrow using a pipe wrench
with length of 450mm or longer. (Fig. 8)
3) Fix Pipe 25 in vise by fitting the flat surfaces of Cap in the lips of vise. Remove Pipe 25 by turning in the direction of
the arrow using the same pipe wrench as used for removal of Flexible hose. (Fig. 9)
Flex-shaft section can now be disassembled as illustrated in Fig. 10.
Fig. 8
Pipe wrench
Fig. 10
Cap
4) Fix Unbalancer section in vise. Put Wrench 9 on the flat surfaces of Joint. Remove Joint by turning in the direction of
the arrow with the wrench. (Fig. 11)
5) Remove Retaining ring S-6 with Retaining ring S and R pliers (No.1R291). Remove Rubber ring and Felt ring. (Fig. 12)
Fig. 11
Vise
Unbalancer
Joint
6) Remove two 626LLB Ball bearings and two 626 Ball bearings from Unbalancer using Bearing extractor (No.1R269).
(Fig. 13)
Fig. 13
Unbalancer
Pipe 25
(with left-hand thread)
Adjustable wrench
Flexible hose
Vise
Pipe 25
Fig. 12
Wrench 9
Retaining ring S-6
1R269
Ball bearing 626LLB
Fig. 9
Unbalancer section
(includes Joint, Ball bearings, Rubber ring, Felt ring)
Unbalancer
Ball bearing 626 Ball bearing 626LLB
P 4/ 6
Pipe 25
Cap
Vise
Rubber ring Felt ring
Ball bearing 626